Your child asks a hundred questions before lunch. Ace answers them, and then asks one back.

Ace is a voice AI app for children aged 5 to 12, made by Curiosities AI in Berkeley, California. Instead of handing over quick answers, Ace keeps the conversation going with follow-up questions, so kids get used to reasoning things through, explaining their ideas and staying curious. Kids talk, they don't type, which means even early readers can use it on their own.

At a glance

Ages: 5 to 12
Format: Voice-first app
Devices: iPhone and iPad (iOS / iPadOS 18 or later), plus Macs with an Apple M1 chip or later
Chat languages: English, Spanish, Mandarin and French
App interface: English
Price: Free to download, with an optional Ace Premium subscription (monthly or yearly)
Available in Switzerland: Yes, on the Swiss App Store
Made by: Curiosities AI Corp, Berkeley, California

How Ace works for kids

Talk, don't type. Kids chat out loud with Ace, a friendly animated octopus they can personalise around their interests.
Questions that come back. Ace responds with questions of its own, nudging kids to think, guess, explain and dig deeper.
Teach it to Tinker. Every child gets a digital pet called Tinker. Kids explain what they've learned to Tinker, and teaching it back is what makes it stick.
Challenges, stories and chat worlds. Good conversations earn Wonder Tokens, which kids spend on new chat worlds to explore.
Built-in brain breaks. Ace gives kids a gentle break once their ten minutes of Ace time are up.
Hands-free start. Kids can open Ace with Siri, which makes it easy to use on car rides.

What parents see

Family dashboard with daily, weekly and monthly summaries of what your child has been curious about.
Skills tab and learning reports that show which skills your child is building as they explore.
Skill rubrics, developed with educators, across five areas: Critical Thinking, Creativity, Communication, Collaboration and AI Literacy. Each is marked as emerging, developing or excelling, which gives you something concrete to talk about at dinner.
Parental controls and age assurance built into the app.

Built for healthier screen time

Ace is designed without streaks, infinite scroll or other mechanics meant to keep kids hooked. Safety guardrails keep responses child-appropriate and steer off-topic questions back to something useful. Curiosities AI evaluates its AI against three pillars it calls Think, Teach and Safety: does it encourage active reasoning and protect the child's agency, is it age-appropriate and truthful, and does it keep healthy emotional boundaries and point kids back to the trusted people in their lives.

Who's behind Ace

Curiosities AI is a women-owned company founded by Yi Ng, a mother and product leader focused on AI, learning and human-centred design. Ace was shaped together with educators from the Berkeley Unified School District in California. The company is backed by Reach Capital and advised by Scott Cook, co-founder of Intuit.

Good to know for families in Switzerland

Language: Ace does not currently chat in German. It's a natural fit for English-speaking, international and multilingual families, and for kids who are comfortable in English, French, Spanish or Mandarin.
Devices: Ace is available for Apple devices.
Subscriptions: Ace Premium is billed through your Apple account, and the App Store shows the price in CHF before you subscribe. The free version includes less talk time than Premium.

Getting started

Download Ace free from the App Store.
Set up your parent account and create a profile for your child.
Hand over the device and let your child start talking.
Check the family dashboard to see what caught their curiosity.

FAQ

What age is Ace for? Ace is designed for children aged 5 to 12. Because it's voice-first, younger children who can't yet type can use it too.

Is Ace free? Ace is free to download and includes a free version. Ace Premium, available monthly or yearly, adds more talk time.

Does Ace speak German? Not at the moment. Kids can chat with Ace in English, Spanish, Mandarin and French.

How does Ace keep children safe? Ace uses built-in safety guardrails and child-appropriate responses, redirects unsuitable questions, and avoids addictive design features like streaks and infinite scroll. Parental controls and age assurance are built in.

Can I see what my child talks about with Ace? Yes. The family dashboard shows daily, weekly and monthly summaries of the topics your child explores, plus the skills they're building.

How long do kids use Ace at a time? Ace builds in a gentle brain break once a child's ten minutes of Ace time are up.

Which devices does Ace work on? iPhone and iPad running iOS or iPadOS 18 or later, and Macs with an Apple M1 chip or later.

Momizen lists businesses and services for families. Details were accurate at the time of publishing; please check with Curiosities AI or the App Store for current pricing and features.